78
MEP-7000
1
2
3
4
A
B
C
D
E
F
1
2
3
4
No.
Waveform
Items for check
Causes and measures
Points to be checked
[7-3] In a case where the LD current value is outside the specified ran
g
e of values
If updating fails while the firmware is being updated, an error message is displayed on the LCD,
and the LED repeatedly flashes.
If operation stops at the point at which the version updating screen is displayed
Check if the short-circuiting pad
for servo recovery is short-
circuited.
If it is, open it.
-
1
-
Symptoms when the unit is turned
on again after updating fails:
• If the update file used was
improper: The unit will start up
normally.
• If firmware updating for the
control unit failed: The LCD will
not light even after the unit is
turned on.
• If firmware updating for the
servo drive failed: The loading
mechanism will not be activated
(no motor sound) even after the
unit is turned on.
• If firmware updating for the
drive unit failed: Operation stops
at the point at which the PRO
DJ logo is displayed after the
unit is turned on.
See [4] of “
8
.3 UPDATI
N
G/RECOVERY OF
FIRM
W
ARE.”
-
1
-
3
with the
DVD/CD
drives
removed.
with the
DVD/CD
drives
removed.
SRV1/2
ASSY
If the waveform of the output signal is normal,
check the mounting status of the terminals of
the SODC (IC106/906). If they are properly
mounted, go to [4].
If the waveform of the output signal is not
normal, check the mounting status of the
terminals of the FEP (IC102/902). If they are
properly mounted, they are defective; replace
them.
51,52
4
SRV1/2
ASSY
Check the TEDRV signal (signal
at 1.65 V center). Is a pulse-like
signal output when tracking is
closed?
Check the TE signal (signal at
1.65 V center).
If there is an output signal, check the mounting
status of the terminals of the DRIVER
(IC100/900). If they are properly mounted, then
they are defective; replace them.
If the waveform of the output signal is not
normal, check the mounting status of the
terminals of the SODC (IC106/906). If they are
properly mounted, they are defective; replace
them.
51,52
For details, see “5.4 DEFECT JUDGME
N
T OF
THE PICKUP ASSY.”
-
-
1
-
No.
Waveform
Items for check
Causes and measures
Points to be checked
No.
Waveform
Items for check
Causes and measures
Points to be checked
[7-4] In a case where updatin
g
of the firmware version has failed
The displayed version of some device is “Ver. 0.00.
The displayed version of the Servo Drive is “Ver. 3.04.”
Check the results of the auto
device diagnosis or the status
LEDs to see if the corresponding
device is judged as
N
G.
Communication between that device and the
CPU has not been established.
See “[
8
] Auto device diagnosis/Status LEDs” in
this section.
-
1
-
Check the FFC cables that
connect the SMAI
N
with SRV1/2
Assys.
This version is displayed when ATAPI commu-
nication between the SMAI
N
and SRV1/2
Assys is not established. Reconnect the FFC
cables. If it does not resolve the problem, see
“[
8
] Auto device diagnosis/Status LEDs” in this
section.
-
2
SMAI
N
ASSY/SRV1/2
ASSY
No.
Waveform
Items for check
Causes and measures
Points to be checked
[7-5] In a case where a version displayed is wron
g